Abnormal behavior should not be confused with unusual behavior. Behavior that is out of the ordinary is not necessarily indicative of a mental or psychological disorder. Abnormal behavior, on the other hand, while not a mental disorder in itself, is often indicative of mental and psychological disorders.
He should at ballenced out food to eat to stay healthy. He can do exersise,run,and etc. Try to stop eating fast food, restrieants,and dont eat to much candy.